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Image copyright Wolfgang Bohme/Senckenberg Research Institute Image caption The Natrix helvetica was originally thought to be a subspecies of the grass snake A new type of snake has been discovered in the UK, bringing the total number of species to four. Scientists say the barred grass snake, Natrix helvetica, is actually a different species to […]

Image copyright Maurico Anton Image caption The otter lived in a swamp surrounded by evergreen forest A giant otter that roamed southwestern China six million years ago had a surprisingly strong bite and could have been a top predator, say scientists. Studies of the animal’s fossilised skull reveal that it had the chewing ability of […]